low idle then dies?
08-14-2010, 08:05 PM
#1
low idle then dies? Alright so yesterday I was just driving along for maybe 20 minutes and I slowed down to stop for a stopsign and then car just died. I tried restarting 2 or 3 times, didn't work, so I took the key out, put it back in, and the car fired up right away but to a low, stumbling idle. I tried turning around and heading how, and when id roll in neutral, it would go to that same idle then get back on the gas and it would die seconds later (maybe get 30 seconds max of driving). Car struggles to start unless I take the key out and start it again, in which case it starts right away. I can hear the fuel pump prime everytime, but I still think it could be fuel related, but I leave that to the experts. This has happened maybe 3 other times in the past 3 months, all of which it was excessively hot, but it has never been a continuing issue until now. Today, same issues persist.
So what could be the problem here? All gauges are showing good, plenty of gas, volts are good, only codes that were being thrown are for the o2s but that's cuz of the headers and lack of tune. Car also has ran perfect all of yesterday except for this.
So what could be the problem here? All gauges are showing good, plenty of gas, volts are good, only codes that were being thrown are for the o2s but that's cuz of the headers and lack of tune. Car also has ran perfect all of yesterday except for this.
08-15-2010, 02:48 PM
#4
codes are no issue, its just bad signal ro whatever from the rear o2s (which are gone). its been untuned for a while now, but i will try the MAF and TB cleaning. Injectors shouldnt be a problem since ill throw a gallon or 2 of E85 threw it once a month [if you are going to say it causes problems, go read the thread "hwo to run your LS1 on E85].
Also, started it up today, ran fine for the hour I drove it around and I parked it with no issues. I think its possessed
Also, started it up today, ran fine for the hour I drove it around and I parked it with no issues. I think its possessed
08-15-2010, 02:59 PM
#5
Unless your motor is set up for E85 you shouldn't use it. It dries out rubber seals & gaskets since it's alcohol based, which could be the source of your low idle problem. I run fuel injector cleaner every oil change and I have never had a fuel system related problem with any of the fuel injected cars I've owned over the years. And just because your car ran good before without a tune doesn't mean that's not the problem. As you drive your car the ECM adjusts many different parameters, so after a month or so a problem can pop up.
08-15-2010, 04:05 PM
#6
the tune is probably coming beginning of next week but i can assure you the E85 is not the issue. 1 gallon out of a full tank isnt anything. read the thread i mentioned, alot of good info on it there. Not corrosive like methanol. I dont trust additives.
